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Finding the Fourth Proportional to 70,590.98, 105,861.18 and 25,600.97

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Solution

The fourth proportional to 70,590.98, 105,861.18 and 25,600.97 is: 38,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,590.98 : 105,861.18 = 25,600.97 : x
  2. Step 2: Convert to fraction form
    70,590.98/105,861.18 = 25,600.97/x
  3. Step 3: Cross multiply
    70,590.98x = 105,861.18 × 25,600.97
  4. Step 4: Simplify right side
    70,590.98x = 2,710,148,893.34
  5. Step 5: Solve for x
    x = 2,710,148,893.34/70,590.98
  6. Step 6: Final answer
    x = 38,392.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.